Yes you can, but in an unexplored system you will need to FSS the body first to find out where it is unless you want to do parallax exploring. And once you've FSS'd the body (which is the bulk of the exploration process) you may very well not want to map a body just for the sake of it.
(Don't see the problem here even the biggest systems are scanned in a minute or 2 once you know how to use the fss don't see a burden here at all.)
Why would you want to 'explore' an already discovered system? I never did that, and still don't even with the FSS.
(Lol I started out exploring from the get go because I wasn't good at combat in the beginning. I scanned most the bubble in a cobra then scanned all the areas around the bubble before starting to do long range exploring. Why do it you ask....um...easy credits is why. Why around the bubble and other scanned systems? Because I was busy unlocking engineers and didn't want to go far out until I had my ships mostly engineered. You still make tons of money you just don't get your name on stuff and in the beginning it was all about credits for me. I used various road to riches apps like spansh.co.uk to find everything valuable in and around the bubble.)
Yes, that's right. People aren't asking for the ADS back to make exploration easier, or quicker, or more lucrative. They are asking for it to facilitate a different kind of exploration that the FSS makes pretty much impossible.
(Well he technically still can explore new systems the old way if his eyes are good enough to tell planets apart from stars in the distance lol. The ads made no sense in its operation the fss was fdevs attempt at a more realistic simulation. )
And the point (I suspect) that Burke was making earlier, is questioning why anybody would object to that if they aren't being asked to do it themselves.